Results 71 to 80 of about 6,414 (234)
Nuclear Fusion, 2023 The aim of this study is to analyze the linear stability of Alfvén eigenmodes (AE) in the QPS device heated by a tangential neutral beam injector (NBI). The analysis is performed using the gyro-fluid code FAR3d, that solves the reduced MHD equations for ...
J. Ortiz +4 more
doaj +1 more source
Symposium - International Astronomical Union, 1997 The last two decades have seen the emergence of a new field in stellar astrophysics, the study of stellar coronae mostly in X-ray domain. With the advent of soft X-ray imagery X-ray emission was found from many thousands of solar-like stars. I will summarize the most important findings of X-ray surveys of late type stars and put the results in the ...
openaire +1 more source
Neutronics analysis of spin-polarized fuel in spherical tokamaks
Nuclear FusionThe effect of spin-polarized deuterium–tritium fuel on the blanket, magnets, and surrounding structures is analyzed for a spherical tokamak fusion power plant.
Jin Whan Bae +7 more
doaj +1 more source
Overview of European efforts and advances in Stellarator power plant studies [PDF]
The stellarator concept is a promising candidate for a steady-state fusion power plant, but currently lacking behind the tokamak developments. In order to bring the stellarator concept to maturity, a new EUROfusion Task has been established within the ...
Lion, J. +43 more
core +1 more source
Configuration studies for a small-aspect-ratio tokamak stellarator hybrid [PDF]
, 1996 The use of modulated toroidal coils offers a new path to the tokamak-stellarator hybrids. Low-aspect-ratio configurations can be found with robust vacuum flux surfaces and rotational transform close to the transform of a reverse-shear tokamak.
Ware, A., Carreras, B. A., Lynch, V. E.
core +1 more source
International Astronomical Union Colloquium, 1980 Important progress in our understanding of stellar chromospheres has occurred in the past few years as a result of new observations, developments in spectral line formation theory, and the application of that theory to the construction of detailed model chromospheres.
openaire +1 more source
A framework for discrete optimization of stellarator coils
Nuclear FusionDesigning magnets for three-dimensional plasma confinement is a key task for advancing the stellarator as a fusion reactor concept. Stellarator magnets must produce an accurate field while leaving adequate room for other components and being reasonably ...
K.C. Hammond
doaj +1 more source
3D MHD simulations of stellarator plasmas with SPECYL and PIXIE3D codes
, 2015 Preliminary simulations of stellarator-like configurations with the nonlinear 3D MHD codes SPECYL and PIXIE3D are reported in this work. SPECYL [1] solves the zero-b visco-resistive MHD equations in cylindrical geometry, whereas PIXIE3D [2] can run in ...
Bonfiglio D +4 more
core
Nuclear FusionModelling the scrape-off layer of a stellarator is challenging due to the complex magnetic 3D geometry. The here presented study analyses simulations of the scrape-off layer (SOL) of the stellarator Wendelstein 7-X (W7-X) using spatially varying ...
David Bold +8 more
doaj +1 more source
A compact stellarator-tokamak hybrid [PDF]
Tokamaks and stellarators are the leading two magnetic confinement devices for producing fusion energy, begging the question of whether the strengths of the two could be merged into a single concept. To meet this challenge, we propose a first-of-its kind
Plunk, G. G. +3 more
core +1 more source